<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        // const p = new Promise((resolve) => {
        //     resolve();
        // });
        const p1 = Promise.resolve();

        // const p2 = new Promise((resolve, reject) => {
        //     reject(new Error('err..'))
        // })
        const p2 = Promise.reject(new Error('err...'))
    </script>

</body>

</html>